The **M2RTS-S-DA-R2/CE** is a high-performance **Resistance Temperature Detector (RTD) Transmitter** manufactured by **M-System**. It is designed to convert signals from a temperature sensor (RTD) into a standard DC output signal suitable for industrial automation systems. --- ### 1. Component Breakdown (Model Suffixes) | Suffix | Description | Detail | | :--- | :--- | :--- | | **M2RTS** | Series Name | RTD Transmitter (Plug-in type) | | **S** | Signal Conditioning | Ultra-slim or Standard precision series | | **DA** | Input Type | Pt 100 (ITS-90) RTD input | | **R2** | Power Input | 110V - 240V AC | | **CE** | Certification | CE Marking (European Conformity) | --- ### 2. Key Electronic Features #### A. Input Circuitry The device is specifically calibrated for **Pt 100** resistance temperature detectors. It utilizes a 3-wire system to compensate for lead-wire resistance, ensuring that the distance between the sensor and the transmitter does not degrade the accuracy of the temperature reading. #### B. Isolation Technology This model features **Three-way Isolation**: * **Input to Output** * **Input to Power** * **Output to Power** This protects sensitive PLC/DCS cards from surges, ground loops, and electrical noise common in industrial environments. #### C. Output Signal The "DA" configuration typically provides a standard analog output. Common configurations include: * 4 – 20 mA DC * 1 – 5 V DC * 0 – 10 V DC #### D. Performance Specifications | Parameter | Value/Range | | :--- | :--- | | **Accuracy** | ±0.1% of span | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Insulation Resistance** | 100 MΩ with 500V DC | | **Dielectric Strength** | 2000V AC @ 1 minute | --- ### 3. Connection Diagram (Simplified) Below is a representation of the typical wiring logic: ```text [ RTD SENSOR ] --------> [ TERMINALS 1, 2, 3 ] (Input) | [ ISOLATION BARRIER ] | [ POWER 240V AC ] -----> [ TERMINALS 7, 8 ] (Power) | [ PLC / CONTROLLER ] <-- [ TERMINALS 4, 5 ] (Output) ``` --- ### 4. Physical Build * **Mounting:** DIN rail or surface mounting. * **Housing:** Flame-resistant resin (black). * **Maintenance:** "Plug-in" base allows the electronic module to be replaced without disconnecting the field wiring.